Fix release versioning (#4516)

* correct immutability lockfile flag for yarn 3

* More experiments to re-enable the Version Packages action

* add changeset

* more work to fix automated changeset workflow

.changeset/sixty-suns-hang.md

@@ -0,0 +1,5 @@
+---
+'slate': patch
+---
+
+another attempt to get the automated changeset workflow working again

.github/workflows/release.yml

@@ -40,7 +40,8 @@ jobs:
         if: matrix.channel == 'latest'
         uses: changesets/action@master
         with:
-          version: yarn changeset version && yarn install && git add .
+          # defined in package.json#scripts
+          version: changeset:version
           publish: yarn changeset publish
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

package.json

@@ -8,6 +8,7 @@
     "build": "yarn build:rollup && yarn build:next",
     "build:next": "cd ./site && next build && next export",
     "build:rollup": "rollup --config ./config/rollup/rollup.config.js",
+    "changeset:version": "yarn changeset version && yarn install && git add .",
     "clean": "rimraf './packages/*/{dist,lib,node_modules}' './site/{.next,out}'",
     "fix": "yarn fix:prettier && yarn fix:eslint",
     "fix:eslint": "yarn lint:eslint --fix",